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A50s Headphone Amplifier specifications
6.35mm headphone jack
THD+N @1kHz A-wt : <0.00007% @Output=850mW(32Ω)/ <0.00006% @Output=90mW(300Ω)
THD @20-20kHz 90kBW :<0.0004% @Output=720mW(32Ω) / <0.0002% @Output= 77mW(300Ω)
SNR @MAX OUT 1kHz A-wt : 137dB
Dynamic Range @ 1kHz A-wt : 138dB
Frequency Response : 20Hz-200kHz(+0.05dB)
Output Level: 21Vpp
AP measured noise level @A-wt : <0.7uVrms @G=L/ <0. 8uVrms @G=H
Actual noise level* @A-wt : <0.3uVrms @G=L/ <0.45uVrms @G=H
Channel Crosstalk @1kHz: -86dB
IMD CCIF@(18kHz + 19kHz) : -116dB
IMD SMPTE @(60Hz + 7kHz) : -110dB, SMPTE4: 1 / -118dB, SMPTE1: 1
Input Sensitivity : 7.5Vrms @G=OdB / 3.8Vrms @G=6dB
Gain: 0.0dB@G=0dB 6.0dB@G=6dB
Output Impedance: <0.1Ω
Output Power THD+N<1 % : 1.4Wx2@32Ω / 192mW x 2@300Ω
Output Power @2Vrms IN : 485mW x 2 @32Ω / 52mW x 2 @300Ω
Load Impedance : > 8Ω
4. 4mm Balanced headphone jack
THD+N @1kHz A-wt : <0.00007% @Output=3.4W(32Ω)/ <0.00006% @Output=367mW(300Ω)
THD @20-20kHz 90kBW : <0.001% @Output=2.88W(32Ω)/ <0.0005% @Output=307mW(300Ω)
SNR @MAX OUT 1kHz A-wt : 143dB
Dynamic Range @ 1kHz A-wt : 144dB
Frequency Response : 20Hz-200kHz(+0.05dB)
Output Level: 42Vpp
AP measured noise level @A-wt : <0. 9uVrms @G=L/ <1.1uVrms @G=H
Actual noise level* @A-wt : <0.6uVrms @G=L / <0.95uVrms @G=H
Channel Crosstalk @1kHz: -128dB
IMD CCIF@(18kHz + 19kHz) : -116dB
IMD SMPTE @(60Hz + 7kHz) : -110dB, SMPTE4: 1 / -118dB, SMPTE1: 1
Input Sensitivity : 7.5Vrms @G=0dB / 3.8Vrms @G=6dB
Gain: 6.0dB@G=0dB 12.0dB@G=6dB
Output Impedance: <0.2Ω
Output Power THD+N<1 % : 3.5Wx2@32Ω 760mW x 2@300Ω
Output Power @2Vrms IN : 1950mW x 2 @32Ω / 208mW x 2 @300Ω
Load Impedance : > 8Ω